Adds the AddressNormalizationManager and tests.

components/payments/core/BUILD.gn

Index: components/payments/core/BUILD.gn
diff --git a/components/payments/core/BUILD.gn b/components/payments/core/BUILD.gn
index 8cfd8f3835d1d6bcbafa91c657dffaa83a1ec146..c9fd1b9ccf4262027e362f6ceb0abe7c7f8b8aac 100644
--- a/components/payments/core/BUILD.gn
+++ b/components/payments/core/BUILD.gn
@@ -4,6 +4,8 @@
 
 static_library("core") {
   sources = [
+    "address_normalization_manager.cc",
+    "address_normalization_manager.h",
     "address_normalizer.h",
     "address_normalizer_impl.cc",
     "address_normalizer_impl.h",
@@ -72,6 +74,7 @@ static_library("test_support") {
 source_set("unit_tests") {
   testonly = true
   sources = [
+    "address_normalization_manager_unittest.cc",
     "address_normalizer_impl_unittest.cc",
     "autofill_payment_instrument_unittest.cc",
     "basic_card_response_unittest.cc",